Improvement in gates



'TOFFLEMIRE & LINNELL. j

Gate.

No. 107,638. Patented Sept; 20, 1870.

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JOHN J. TOF LEMIRE AND. JOSEPH n. LINNELL; or ROCKFORD. ILLINOIS.

. Letters PatentNo. 107,638, daaa's ltmter 20.1870.

IMPROVEMENT IN GATES.

The Schedulerefezged to in these Letters Patent and. making part of the same.

. To allwhom it may concern.-

that the following, is afull and exact description of the same, reference being had to the accompanyingdrawing and'to the letters of reference marked thereon This invention relates to. gates for carriage-ways, and consists of an improved arrangement of levers and cranked bars, constructed and operating. as hereinafter I more fully set forth.

In the drawing-- Figure 1 represents a plan view of the arrangement of levers and weighted crank-shaft.

Fignre2, a sectional view, taken through the line but, showing thepivots and notches wherethe ends of the levers" rest; and 9 Figure 3 is aside elevation. The posts A A, which are preferably made double, for the passage of the gates between them, may be framed and b'rac'ed in any convenient manner. I l

. The construction shown in the annexed drawing is, perhaps, the-stronger and more convenient, and will he more particularly described. l

a A A are represented as mortised into bed-pieces B B, having a transverse plank and braces a a.

The lower outer corner of cach of the gates G G is recessed and pivoted in the mannershown, permitting the gate to bethrown over and entirely outside of the way betwecnthe posts. 1 l a l Arranged longitudinally of thebeams or bed pieces 13 B are levers b 1) b bf, shown here as pivoted to the braces.

The inner may be shorter at its outer. end, and projects beneath the gate, (when closed,)in the recessed cornerp'i i The outerQ-lcvcr extends. to meet its fellow on the opposite side of the gate, directlybeneath the middle part of the gate itself. I a

The gate. being closed, and the inner levers on one side of the gate being depressed,hoth leaves of thegate ar'e thrown outward, bringing the cndsof each resting on the extremities of the outer lovers, the like depression-of which throws the gate backinto position across the roadway. 1

To operate these levers, each set properly in its turn, there is provided a cranked bar, 0, at the outer "end of each set, and arranged across the roadway.

These cranked bars are more clearly shown in fig. .1. They are bent as shown, the parts a c forming the hearings on which they turn, and the parts (I d and l d cl striking the outer and inner sets of levers. These bars are-deflected at the cranked parts, outof line, so that on the outer side of the journals 0 c the crank inclines. one way, and, on the inner, the bar across the roadway inclines the other.

The weights on the outer extremities of the bar are so arranged that, when at rest, the bar shall automatically hang with each deflected part equally inclined from a.perpendicularline drawn between them. Thus left to hang undisturbed, the central portion of the bar across the roadway and over the inner levers inolines always toward the gate, and the cranked part over the outer lever always away from the gate.

From this arrangement itresults that a carriage approaching the gate will strike the bar with the forward wheels, and tip it toward the gate, thus opening the valves, and, on the other side, leaving the gate, the wheels inevitably strike the other bar, and tip it inthe other direction, thus bringing the outer cranks against the outer levers, and throwing in the gates to to the closed position. These gates may be made of any material, and mode of. construction. They may be provided with a recess and tongue, as shown at e, to hold the gate, when closed, against lateral displacement. a

. The levers may be protected by guard, as shown at f f, to limit their motion.

The devices are exactly the same on the gate. p I

The operation of this gate is full y-shown in the description of its parts.

Having thus fully described our invention, What we particularly claim as new, and desire to secure by Letters Patent of the. United States, is-

1. The gates, pivoted as shown, in combination with the double set of levers on both sides of the gate, arranged and operating in the manner set forth, when depressed by any suitable transverse bar across the way, all as described.

both sides of 2. The gates, levers, and bars 0 0, when arranged 

